Externally fitted key card and implementation method thereof

Abstract

The present invention provides an externally bonded key card and an implementation method thereof, wherein the externally bonded key card comprises: a pre-laminated component, including: a card substrate and an electrical performance component; the card substrate is a circuit carrier of the electrical performance component in the card; the electrical performance component includes: an antenna, a carrier tape, and a chip, which are located on the card substrate and provide electrical connection for data signal communication interaction of the card; a layout printing component, which is pressed and assembled on the pre-laminated component to expose the antenna wire end; a key component, which is pressed and assembled on the antenna exposed frame position, includes: a disconnected control circuit, a key, and an on-off controller; the control circuit, the on-off controller, and the key are arranged in sequence from bottom to top; the two ends of the control circuit are respectively connected to the antenna wire end; the periphery of the key is embedded in the antenna exposed frame, or bonded to the layout printing component; the on-off controller corresponds to the two ends of the control circuit that are disconnected. The present invention can greatly reduce the force on the key during the packaging process of the externally bonded key card.

Description

Technical Field

[0001] The present invention relates to the technical field of smart cards, and in particular to an externally fitted key card and an implementation method thereof. Background Art

[0002] With the development of Internet technology, mobile payment is developing rapidly. In order to facilitate consumers' payment needs, IC cards have also launched the "Quick Pay" function, which has the characteristics of small and fast payment. The "Quick Pay" IC card "Quick Pay" function has brought convenience to people's consumption. Cardholders can make small and fast payments without passwords in a contactless manner. The transaction can be completed in less than half a second by waving the card, which greatly improves the user experience. However, it also increases the risk of card theft.

[0003] IC cards are classified according to the form of data transmission with the outside world, including contact IC cards, contactless IC cards, and dual-interface cards that combine the two. Contact IC cards, as the name implies, require close contact to complete consumption card swiping. On this card, the chip has eight contacts that can contact the outside world. Contactless IC cards are relatively widely used. The integrated circuit of this card does not lead out contacts and has radio frequency transceiver related circuits. Contactless IC cards are usually used as commercial cards. The NFC (Near Field Communication) function in dual-interface cards, that is, short-range wireless communication technology (near field communication), is a contactless identification and interconnection technology that can perform short-range wireless communication between mobile devices, consumer electronic products and other devices. NFC can realize data transmission between two devices, sharing of applications, transportation card recharge, transportation card balance inquiry, card payment, etc., as the main application of card transactions.

[0004] In order to facilitate consumption, UnionPay and other institutions have launched small-amount, password-free, signature-free fast payments using NFC technology. The transaction speed of "waving the card to pay" has greatly improved the user experience of cardholders, but the risk of exposed cards being stolen has also increased accordingly. Due to the "Quick Pay" function, cardholders' cards are at risk of being stolen by criminals using POS machines and other machines in close proximity. There are even cardholders whose cards are placed on the windshield of a car and stolen by criminals using POS machines. Therefore, in order to avoid property losses of cardholders and prevent cards from being stolen without the cardholder's knowledge, it is necessary to optimize the hardware structure of the card.

[0005] Therefore, how to provide a smart card with an optimized hardware structure that is convenient for users to use while taking security into consideration is a technical problem that needs to be solved urgently in this field. Summary of the invention

[0006] An object of the present invention is to provide an externally-attached key card and an implementation method thereof, so as to solve the technical problem that there is no smart card in the prior art that is convenient for users to use and has security.

[0007] In particular, the present invention provides an externally bonded key card, comprising: a pre-laminated component, a layout printing component and a key component; wherein:

[0008] The pre-laminated component includes: a card substrate and an electrical performance component; the card substrate is a circuit carrier of the electrical performance component in the card; the electrical performance component includes: an antenna, a carrier tape, and a control chip, which are located on the card substrate and provide electrical connection for data signal communication interaction of the card;

[0009] The printed board component is assembled on the pre-laminated component by pressing, and the pre-laminated component and the printed board component are provided with an antenna exposed frame at a position corresponding to the antenna, and the antenna wire end of the antenna is exposed in the antenna exposed frame;

[0010] The button assembly is pressed into the exposed frame of the button antenna, and includes: a disconnected control circuit, a button and an on-off controller; the control circuit, the on-off controller and the button are arranged in sequence from bottom to top; the two ends of the control circuit are respectively connected to the antenna wire ends; the periphery of the button is embedded in the exposed frame of the antenna, and / or adhered to the layout printing assembly; the on-off controller corresponds to the disconnected two ends of the control circuit, and turns on the control circuit when receiving the on-trigger of the button.

[0011] Optionally, the on-off controller comprises: a metal conductor, which is a metal conductor spring with an elastically deformable middle curved convex portion, the curved convex portion corresponding to a disconnection point where the button and the control circuit are disconnected, and when the curved convex portion is triggered by a button press to cause the deformation to contact and conduct with the disconnection point of the control circuit; when the press-on trigger at the curved convex portion is released, the metal conductor returns to a state of being disconnected from the disconnection point.

[0012] Optionally, the on-off controller includes: an electrostatic trigger, which is a resistor and / or a capacitor, and its two ends are respectively connected to the two disconnection points of the control circuit; the button is an electrostatic conductor, which is connected to the electrostatic trigger, and when receiving an electrostatic trigger, it triggers the electrostatic trigger to turn on; when the electrostatic trigger is released, the electrostatic trigger is restored to the disconnected state.

[0013] Optionally, the button includes: a button functional part and a protective film, the button functional part corresponds to the on-off controller, the protective film surrounds the button functional part, the outer side of the protective film is embedded in the antenna exposed frame, and / or adhered to the layout printing component.

[0014] Optionally, the button and the control circuit are bonded by a hot-pressed adhesive sheet bonded by double-sided tape at high temperature, a hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to the functional part of the button, and the on-off controller is located in the hollow frame.

[0015] On the other hand, the present invention also provides a method for implementing an externally-attached key card, comprising:

[0016] The card substrate is used as a circuit carrier of the electrical performance component in the card, and the electrical performance component is assembled at a predetermined position on the card substrate, wherein the electrical performance component includes: an antenna, a carrier tape, and a control chip, which are pre-laminated to form a pre-laminated component;

[0017] Printing a substrate to obtain a printing plate, assembling and pressing the printing plate with the pre-laminated component to obtain a substrate composite module; milling a groove at a preset position on the printing plate side of the composite module to obtain an antenna exposed frame, exposing the antenna wire end of the antenna;

[0018] In the antenna exposed frame, the disconnected control circuit, on-off controller and button are arranged in sequence from bottom to top, the on-off controller is corresponding to the two ends of the disconnected control circuit, and the periphery of the button is embedded in the antenna exposed frame or adhered to the layout printing component; the antenna wire ends of the composite module are respectively fixed to the two ends of the control circuit, and pressed together to obtain an externally fitted button card.

[0019] Optionally, the on-off controller comprises: a metal conductor spring with a curved convex shape in the middle part having elastic deformation; the steps of placing the on-off controller include:

[0020] A hot-pressed adhesive sheet bonded with double-sided adhesive at high temperature is placed between the button and the control circuit, and a hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to a disconnection point where the functional part of the button and the control circuit are disconnected;

[0021] The on-off controller is placed in the hollow frame so that the curved and convex parts of the on-off controller correspond to the disconnection points where the functional parts of the button and the control circuit are disconnected.

[0022] Optionally, the on-off controller includes an electrostatic trigger, the electrostatic trigger is a resistor and / or a capacitor, and the steps of placing the on-off controller include:

[0023] A hot-pressed adhesive sheet bonded with double-sided adhesive at high temperature is placed between the button and the control circuit, and a hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to a disconnection point where the functional part of the button and the control circuit are disconnected;

[0024] Connecting two ends of the electrostatic trigger of a resistor and / or capacitor to two disconnection points of the control circuit respectively, and placing them in the hollow frame;

[0025] The button is an electrostatic conductor, connected to the electrostatic trigger, and triggers the electrostatic trigger to turn on when receiving an electrostatic trigger; and restores the electrostatic trigger to a disconnected state when the electrostatic trigger is released.

[0026] Optionally, the method further comprises:

[0027] A heat-pressed adhesive sheet is bonded to the substrate of the control circuit, and a hollow frame is provided on the heat-pressed adhesive sheet at a position corresponding to the functional part of the key; and the on-off controller is placed in the hollow frame;

[0028] The function part of the key is matched with the on-off controller, and the periphery of the key is bonded to the substrate of the control circuit by the hot pressing adhesive to obtain a key assembly;

[0029] The key assembly is adhered to the exposed frame of the antenna by double-sided adhesive and pressed to obtain an externally fitted key card.

[0030] Optionally, the button comprises: a button function part and a protective film, wherein the button function part corresponds to the on-off controller, and the protective film surrounds the button function part; the button function part is provided with a button cavity on a side facing the card, and the on-off controller is placed in the button cavity;

[0031] The periphery of the protective film is bonded to the substrate of the control circuit by means of a hot pressing adhesive to obtain a key assembly; the key assembly is embedded in the antenna exposed frame so that the periphery of the protective film is embedded in the antenna exposed frame, or is attached to the layout printing assembly.

[0032] The externally bonded key card of the present invention and its implementation method add keys to the IC card. When the cardholder swipes the card to make a purchase, the cardholder can control the use of the IC card through subjective consciousness to prevent the card from being stolen. The card packaging process is optimized, and the bonding and packaging program of the key module is placed at a later stage, which can greatly reduce the force on the key during the packaging process, prevent the problem of the card key not restoring the disconnected state during the packaging process, improve the processing yield of the card, and reduce the overall cost of the card. By reducing the force of pressing the key, the user experience of the card is improved. There are no special requirements for the card processing technology and production equipment, and the position, size and appearance of the key can be selected according to customer requirements, which improves the applicability of the card.

[0033] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0035] Figure 1 It is a schematic diagram of an externally fitted key card;

[0036] Figure 2 It is a schematic diagram of the pre-laminated structure of an externally bonded key card;

[0037] Figure 3 It is a schematic diagram of the appearance of an externally fitted key card;

[0038] Figure 4 is a schematic diagram of an externally attached key card according to an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of a key assembly of an externally attached key card according to an embodiment of the present invention;

[0040] Figure 6 is a schematic diagram of a key assembly of an externally attached key card attached to a card according to an embodiment of the present invention;

[0041] Figure 7 is a flow chart of a method for implementing an externally-attached key card according to an embodiment of the present invention;

[0042] Figure 8 is a schematic diagram of packaging of an externally bonded key card according to an embodiment of the present invention;

[0043] Fig. 9 is a flow chart of a method for implementing an externally-attached key card according to a second embodiment of the present invention;

[0044] Fig.10 is a flow chart of a method for implementing an externally-attached key card according to a third embodiment of the present invention;

[0045] Fig.11 is a flow chart of a method for implementing an externally bonded key card according to a fourth embodiment of the present invention;

[0046] Fig.12 4 is a flow chart of a method for implementing an externally-attached key card according to a fifth embodiment of the present invention. DETAILED DESCRIPTION

[0047] Figure 1 It is a schematic diagram of an externally fitted key card; Figure 2 is a schematic diagram of a pre-laminated construction of an externally bonded key card; Figure 3 This is a schematic diagram of the appearance of an externally bonded key card. The externally bonded key card can be divided into three components: (1) Card pre-lamination component 101: This component contains the electrical performance components of a conventional card and serves as an electrical connection; metal coil: There is a three-turn / four-turn metal coil on the board that cuts the magnetic flux and receives the signal. The pre-lamination component can be made of metal, wood, etc., that is, the inlay layer, which is a special term in the smart card industry and refers to a pre-laminated product composed of multiple layers of PVC sheets containing chips and coils. (2) Card key component 102: Contains a circuit board, a mechanical conductive part (metal key sheet or capacitor / resistor), and a connection protection layer. (3) Layout printing component 103: Contains a substrate (PC, PET) and printing ink.

[0048] During the two pressing processes, the pressing force is too strong, resulting in uneven force on the key module and the inability of the elastic metal sheet to rebound, causing the key to fail, or the key to get stuck or the circuit to be turned on only with a lot of force, thus affecting the yield and user experience. The existing technology is to simply put the conductive component inside the card and still press it with the existing pressing method and pressure value, which greatly reduces the yield and performance of the product.

[0049] like Figures 2 to 6 As shown, Figure 4 is a schematic diagram of an externally fitted key card according to this embodiment; Figure 5 is a schematic diagram of a key assembly of an externally-attached key card according to this embodiment; Figure 6Schematic diagram of a key assembly of an externally-attached key card according to this embodiment being attached to a card; an externally-attached key card provided in this embodiment includes: a pre-laminated assembly 201, a layout printing assembly 202 and a key assembly 203.

[0050] Among them, the pre-laminated component 201 includes: a card substrate 211 and an electrical performance component 212; the card substrate is a circuit carrier of the electrical performance component in the card; the electrical performance component includes: an antenna carrier connector and a control chip, which are located on the card substrate and provide electrical connection for the data signal communication interaction of the card.

[0051] The printing plate component 202 is pressed and assembled on the pre-laminated component. The printing plate component includes a substrate (PC, PET). After the pre-laminated component and the printing plate component are pressed together, the antenna exposed frame 221 is milled out by a milling process, and the antenna wire end is picked out. Optionally, the substrate of the printing plate component can also include inks of various patterns, and a packaging film can be provided outside the pattern ink.

[0052] The button assembly 203 is pressed into the exposed frame 221 of the button antenna, and can be connected to the antenna by welding or conductive glue, and includes: a disconnected control circuit 231, a button 232, and an on-off controller 233; wherein the two ends of the control circuit 231 are respectively connected to the antenna wire ends; the button 232 is located on the on-off controller and partially attached to the printed component; the on-off controller 233 is located on the two ends of the control circuit 231 that are disconnected, and the on-off controller is smaller than the size of the functional part of the button, ensuring that the on-off controller is fully pressed when the button is working. The control circuit is turned on when the button conduction trigger is received, and the disconnected state of the control circuit is restored when the button conduction trigger disappears.

[0053] Optionally, the key 232 and the control circuit 231 are bonded by a double-sided adhesive high-temperature hot-pressed adhesive sheet 302, a hollow frame 303 is provided on the hot-pressed adhesive sheet corresponding to the functional part of the key, and the on-off controller 233 is located in the hollow frame 303 and in the same layer as the hot-pressed adhesive sheet 302. The key 232, the on-off controller 233, the hot-pressed adhesive sheet 302 and the control circuit 231 constitute a key assembly.

[0054] The externally bonded key card of this embodiment firstly presses the pre-laminated component and the layout printing component of the card, mills out the antenna exposed frame at the antenna position on the pressed card, and then packages the key to avoid direct force on the key. Finally, the key component is bonded to the layout printing component, or embedded in the antenna exposed frame to form an externally bonded key card. On the side opposite to the control circuit and the card, a special-shaped hot-pressed film 302 with double-sided adhesive and high temperature bonding is provided. The special shape here can be to make the film into a circular, square, diamond, oval, etc. shape similar to the control circuit, to help the key component to be bonded to the surrounding substrate, and to avoid the position that needs to be connected to the circuit board inside, to place the partition circuit, and to place the process of pressing the key component after the pre-laminated component and the layout printing component are pressed to avoid the collapse caused by the card pressing. The strength of the externally bonded key card is increased to avoid the key being crushed by the forces appearing from both sides when pressing.

[0055] In some optional embodiments, the on-off controller includes: a metal conductor, which is a metal conductor spring with an elastically deformable middle curved convex portion, the curved convex portion corresponding to the disconnection point where the button and the control circuit are disconnected, the curved convex portion of the on-off controller is consistent in form with the curved convex portion of the button, and when the curved convex portion receives a button pressing and conduction trigger, the trigger deformation contacts and conducts with the disconnection point of the control circuit; when the pressing and conduction trigger of the curved convex portion is released, the metal conductor returns to the state of being disconnected from the disconnection point.

[0056] A button assembly is added to the card. The button assembly includes a metal conductor and a disconnected circuit. The metal conductor can be a stainless steel sheet with elastic deformation. It is in a warped state under normal conditions. Under normal conditions, the circuit is in a disconnected state. After being pressed hard, the metal conductor is subjected to force, and the elastically deformed metal conductor puts the circuit in a closed state.

[0057] The key assembly also includes a circuit board, a mechanical conductive part (metal key sheet), and a protective film. The protective film can protect the functional parts of the key and other parts of the key assembly. The mechanical conductive part connects two metal wires (points) through the elastic deformation of the metal sheet to achieve the purpose of conduction.

[0058] In some optional embodiments, the on-off controller (replacing the button function through capacitive induction triggering) can be: an electrostatic trigger, which is a resistor and / or a capacitor, and its two ends are respectively connected to the two disconnection points of the control circuit; the button is an electrostatic conductor, which is connected to the electrostatic trigger. When the electrostatic trigger is received, the electrostatic trigger is triggered to turn on, and the circuit of the card is in a closed state; the electrostatic trigger can be a capacitive switch, and when the electrostatic trigger is released, the disconnected state of the electrostatic trigger is restored, and the circuit of the card is in a disconnected state.

[0059] The key assembly can be a non-deformable resistor or capacitor and a circuit that is disconnected under normal conditions, disconnects the circuit when there are no trigger conditions, and makes the disconnected circuit conductive when triggered by static electricity generated by fingers or other objects. The on-off control form of the key press is changed, and the elastic key mechanism is replaced by a non-elastic mechanism, which avoids the problem that the elastic key cannot be restored after being pressed. In some optional embodiments, the key 232 includes: a key function part 401 and a protective film 402, the key function part 401 corresponds to the on-off controller 233, the protective film 402 surrounds the key function part 401, and the periphery of the protective film can be embedded in the antenna exposed frame by adhesive, so that the entire key assembly is embedded in the antenna exposed frame, and the protective film does not exceed the antenna exposed frame so that the card surface of the external bonding key card obtained after pressing will not have a step of the protective film pressing; the periphery of the protective film can also be bonded to the outer side of the antenna exposed frame on the layout printing component by adhesive, and the entire antenna exposed frame component is protected by the protective film. The protective film can protect the circuit from external pressure and friction, and can also protect the key components from scratches, corrosive gases, and liquids, and play the role of decorating the external laminated key card.

[0060] There are also protective devices (support substrate, protective film) around the control circuit that is disconnected under normal circumstances. The buttons and circuits cooperate with the antenna and control chip to form an integrated card pre-laminated component. The pre-laminated component contains the electrical performance components of a conventional card, including several turns of coils and chips connected to the coils, contact connectors, etc., which play the role of electrical connection. The metal coil cuts the magnetic flux and acts as a signal receiver. It can be a multi-turn metal coil; it also contains a PET (or other materials such as PVC, PC, etc.) substrate, which plays the role of protecting the electrical performance components. The supporting substrate of the safety protection device can be obtained by milling the card substrate when the antenna exposed frame is milled out through the milling process. It plays a rigid support role, protects the circuit from external pressure and friction, and isolates the button sheet and circuit board when the button is not under force.

[0061] Since the metal dome embedded in the key is easily subjected to pressure and causes rebound failure, in order to solve this problem, it is necessary to avoid excessive process pressure during the key production process. Therefore, this application proposes a new type of key module, which has a circuit board built in the module, a set of disconnection points on the circuit board, and a touchable metal dome on the circuit board. When the dome is deformed, it will cause the two disconnected points to conduct, and there is a set of specially shaped hot-pressed adhesive sheets under the key.

[0062] like Figure 7 and Figure 8 As shown, Figure 7 is a flow chart of a method for implementing an externally bonded key card according to this embodiment; Figure 8is a schematic diagram of packaging of an externally bonded key card according to this embodiment, which can be used to implement the above-mentioned externally bonded key card function. Specifically, the method includes the following steps:

[0063] Step 401: Use the card substrate as a circuit carrier of the electrical performance component in the card, and assemble the electrical performance component at a predetermined position on the card substrate. The electrical performance component includes: an antenna, a carrier tape, and a control chip, which are pre-laminated and compounded to form a pre-laminated component.

[0064] Step 402, assemble and press the printed page and the pre-laminated component to obtain a substrate composite module; mill a groove at a preset position on the printed page side of the composite module to obtain an antenna exposed frame, and expose the antenna wire end.

[0065] Step 403: Arrange the disconnected control circuit, on-off controller and button in order from bottom to top in the antenna exposed frame, and make the on-off controller correspond to the two ends of the disconnected control circuit. The periphery of the button is embedded in the antenna exposed frame or attached to the printed component; fix the antenna wire ends of the composite module to the two ends of the control circuit respectively, and press them together to obtain an externally attached button card.

[0066] Step 404: The on-off controller turns on the control line when receiving the key-on trigger, and restores the control line to the disconnected state when the key-on trigger disappears.

[0067] The on-off controller turns on the control circuit when receiving the key conduction trigger, and restores the disconnected state of the control circuit when the key conduction trigger disappears. Optionally, after the antenna wire ends are fixed to the two ends of the control circuit of the key assembly respectively, the key assembly is attached to the substrate composite module and located on the antenna exposed frame.

[0068] Optionally, it also includes: setting double-sided tape between the button and the on-off controller, placing the on-off controller on the double-sided tape layer and bonding it to the substrate of the control circuit to obtain a button assembly, and setting double-sided tape between the exposed antenna frame of the card substrate and the button assembly, and then fixing the button assembly to the card substrate through high-temperature bonding and hot pressing to obtain an externally bonded button card. High-temperature bonding, that is, when the thermosetting glue is heated, the activity of the internal components is increased, the overall flexibility is increased, the viscosity is increased, and it flows under the action of pressure and temperature, and then fully contacts the surrounding circuit boards, wires, and connectors, and fixes the surrounding connectors, circuit boards, and wires together after cooling.

[0069] The assembly process of the externally-attached key card in this embodiment may be:

[0070] (1): The first component is the pre-laminated component, which includes a PET (or PVC, PC, etc.) substrate board with a set of coils built in, and the coils can perform communication functions.

[0071] (2): The second component is the printing plate component, which includes PET (or PVC, PC and other materials) material for decoration, PET or PC films for protecting ink at the top and bottom, and the signature strip pasted on the printed plate.

[0072] (3) The third component: including a circuit board, a mechanical conductive part (metal key sheet), an outer protective layer, and an outer protective layer. The mechanical conductive part is to connect two metal lines (points) by elastic deformation of a metal sheet to achieve the purpose of conduction. The metal sheet can be an elastic conductor such as a copper sheet. The first component and the second component of the external bonding key card are bonded at high temperature and high pressure.

[0073] Assemble the first component and the second component first. The first component and the second component require a relatively large pressure to complete the pressing. The pressure is between 15-20 MPa. The pressing time is controlled to be 15-20 minutes. The temperature is controlled between 80 degrees Celsius and 100 degrees Celsius.

[0074] Assembling the first component and the second component first requires a large pressure to complete the substrate composite module, while pressing the key component to the substrate composite module does not require such a large pressure. Pressing the first component and the second component first, and then pressing the key component (third component) to the substrate composite module is conducive to avoiding the impact of pressing the key component when pressing the composite module. Optimizing the card packaging process and postponing the packaging process of the key module can greatly reduce the force on the key, thereby improving the yield of product processing.

[0075] Then, when the card base is milled, positioning is performed and the groove is milled at a specific position. The specific position is the position of the antenna line head, and the specific position relies on the mechanical positioning or optical positioning of the equipment. There can be positioning holes or positioning points on the card base material of the PVC for paneling, which are used for positioning during paneling, and can also be used to locate the position of the antenna line head, and cut off after production. Pick out the antenna that needs to be connected, and fix the corresponding wire head to the circuit board of the button assembly. Spot welding or conductive adhesive bonding can be used. Finally, the card and the button assembly are pressed together using a partial / full pressing method. The pressure range used is 5-10Mpa. The specific bonding method is as follows (such as Figure 5 ):

[0076] 1) The bottom layer is double-sided tape 301, and there are gaps on the tape corresponding to the welding points.

[0077] 2) Above is the circuit board (i.e., control circuit) 231, on which there are two circuits that are normally disconnected.

[0078] 3) On top is the double-sided adhesive 302, which is responsible for connecting the circuit board with the metal button sheet above.

[0079] 4) The metal key sheet 233 on the top is warped in normal state, and elastically deforms after being stressed to disconnect the circuit of the circuit board in the connection 231.

[0080] 5) On the top is a protective film 232 with a specific shape.

[0081] In some optional embodiments, such as Fig. 9 FIG. 1 is a flow chart of a method for implementing a second externally bonded key card according to this embodiment. Figure 7 The difference is that the on-off controller includes: a metal conductor spring with a curved convex shape in the middle part with elastic deformation; the steps of placing the on-off controller include:

[0082] Step 501: Place a double-sided hot-pressed adhesive sheet bonded at high temperature between the key and the control circuit, and provide a hollow frame on the hot-pressed adhesive sheet at a position corresponding to the disconnection point between the functional part of the key and the control circuit.

[0083] Step 502: place the on-off controller in the hollow frame so that the curved convex part of the on-off controller (convex in the direction of the button convexity) corresponds to the disconnection point where the function part of the button and the control circuit are disconnected.

[0084] When the curved convex part is triggered by the pressing of a key, the trigger deformation contacts the disconnection point of the control circuit and becomes conductive; when the pressing of the curved convex part is triggered, the state of being disconnected from the disconnection point is restored, thereby controlling the conduction and disconnection of the control circuit by the key.

[0085] In some optional embodiments, such as Fig.10 FIG. 1 is a flow chart of a method for implementing a third externally bonded key card according to this embodiment. Figure 7 The difference is that the on-off controller includes: an electrostatic trigger, the electrostatic trigger is a resistor and / or a capacitor, and the steps of placing the on-off controller include:

[0086] Step 601: Place a double-sided hot-pressed adhesive sheet bonded at high temperature between the key and the control circuit, and provide a hollow frame on the hot-pressed adhesive sheet at a position corresponding to the disconnection point between the functional part of the key and the control circuit.

[0087] Step 602: Connect the two ends of the electrostatic trigger of the resistor and / or capacitor to the two disconnection points of the control circuit respectively and place them in the hollow frame.

[0088] The button is an electrostatic conductor, which is connected to the electrostatic trigger. When receiving the electrostatic trigger, the electrostatic trigger is triggered to turn on; when the electrostatic trigger is released, the electrostatic trigger is restored to the disconnected state.

[0089] In some optional embodiments, such as Fig.11FIG. 1 is a flow chart of a fourth implementation method of an externally bonded key card according to this embodiment, and FIG. Figure 7 The difference is that it also includes:

[0090] Step 701, bonding a hot-pressed adhesive sheet to the substrate of the control circuit, and providing a hollow frame on the hot-pressed adhesive sheet at a position corresponding to the functional part of the key; placing the on-off controller in the hollow frame.

[0091] Step 702: Align the functional parts of the key with the on-off controller, and bond the periphery of the key to the substrate of the control circuit by means of hot pressing adhesive to obtain a key assembly.

[0092] Step 703: Adhere the key assembly to the exposed frame of the antenna by double-sided tape and press it to obtain an externally fitted key card.

[0093] In some optional embodiments, such as Fig.12 FIG. 1 is a flow chart of a fifth implementation method of an externally bonded key card according to the present embodiment, and FIG. Figure 7 The difference is that the button includes: a button function part and a protective film, the button function part corresponds to the on-off controller, and the protective film surrounds the button function part; the button function part is provided with a button cavity on the side facing the card.

[0094] Step 801: place the on-off controller in the cavity of the key, and bond the outer periphery of the protective film to the substrate of the control circuit by means of a hot pressing adhesive to obtain a key assembly.

[0095] Step 802: embed the button assembly in the antenna exposed frame so that the periphery of the protective film is embedded in the antenna exposed frame, or adhered to the layout printing assembly.

[0096] Optionally, the button function can be extended to serve as a second confirmation or multiple confirmations. The resilience of the button itself can better remind the cardholder of the confirmation feedback, providing a better experience. Due to the encryption chip characteristics of the card itself, in conjunction with a specific card reader and a device with a card reading function, the encryption chip in the card and the button on the surface of the card can be used together with the card reader to form a specific encryption keyboard.

[0097] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application. Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An externally fitted key card, characterized in that: include: Pre-laminated components, layout printing components and key components; wherein, The pre-laminated component includes: a card substrate and an electrical performance component; the card substrate is a circuit carrier of the electrical performance component in the card; the electrical performance component includes: an antenna, a carrier tape, and a control chip, which are located on the card substrate and provide electrical connection for data signal communication interaction of the card; The plate printing component is pressed and assembled on the pre-lamination component; The pressing pressure between the plate printing component and the pre-lamination component is between 15-20MPa; After the pre-lamination component is pressed together with the layout printing component, an antenna exposed frame is milled out at a position corresponding to the antenna, and an antenna wire end of the antenna is exposed in the antenna exposed frame; The button assembly includes: a disconnected control circuit, a button and an on-off controller; the control circuit, the on-off controller and the button are arranged in sequence from bottom to top; The button and the control circuit are bonded by a hot-pressed adhesive sheet bonded by double-sided adhesive at high temperature. A hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to the functional part of the button. The on-off controller is located in the hollow frame and is in the same layer as the hot-pressed adhesive sheet. The on-off controller corresponds to the two disconnected ends of the control circuit and turns on the control circuit when receiving the on-trigger of the button. The periphery of the button is bonded to the substrate of the control circuit by the hot-pressed adhesive sheet to obtain a button assembly. Double-sided tape is provided under the control circuit, and the two ends of the control circuit are respectively connected to the antenna wire ends; the periphery of the button is embedded in the exposed frame of the antenna, or adhered to the printed component; the button component is bonded to the exposed frame of the antenna by double-sided tape, and the button component is pressed, and the pressing pressure is between 5-10MPa.

2. The externally-attached key card according to claim 1, characterized in that: The on-off controller includes: a metal conductor, which is a metal conductor spring with a curved convex shape in the middle part having elastic deformation, and the curved convex part corresponds to the disconnection point where the button and the control circuit are disconnected. When the curved convex part is triggered by the pressing of the button, the deformation is triggered to contact and conduct with the disconnection point of the control circuit; when the pressing and conducting trigger of the curved convex part is released, the metal conductor returns to the state of being disconnected from the disconnection point.

3. The externally-attached key card according to claim 1, characterized in that: The on-off controller includes: an electrostatic trigger, which is a resistor and / or a capacitor, and its two ends are respectively connected to the two disconnection points of the control circuit; the button is an electrostatic conductor, which is connected to the electrostatic trigger, and when receiving the electrostatic trigger, it triggers the electrostatic trigger to turn on; when the electrostatic trigger is released, the disconnected state of the electrostatic trigger is restored.

4. The externally-attached key card according to any one of claims 1 to 3, characterized in that: The button includes: a button functional part and a protective film, wherein the button functional part corresponds to the on-off controller, the protective film surrounds the button functional part, and the outer side of the protective film is embedded in the antenna exposed frame and / or adhered to the layout printing component.

5. A method for implementing an externally bonded key card, characterized in that: include: The card substrate is used as a circuit carrier of the electrical performance component in the card, and the electrical performance component is assembled at a predetermined position on the card substrate, wherein the electrical performance component includes: an antenna, a carrier tape, and a control chip, which are pre-laminated to form a pre-laminated component; Printing a substrate to obtain a printing plate, assembling and pressing the printing plate with the pre-lamination component to obtain a substrate composite module; The pressing pressure between the plate printing component and the pre-lamination component is between 15-20MPa; Milling a groove at a preset position on the printed plate side of the composite module to obtain an antenna exposed frame, exposing the antenna wire end of the antenna; Bonding a hot-pressed adhesive sheet on the substrate of the control circuit, wherein a hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to the functional part of the key; placing an on-off controller in the hollow frame and in the same layer as the hot-pressed adhesive sheet; aligning the functional part of the key with the on-off controller, and bonding the periphery of the key to the substrate of the control circuit through the hot-pressed adhesive sheet to obtain a key assembly; Double-sided tape is provided under the substrate of the control circuit, and the periphery of the key component is embedded in the antenna exposed frame, or adhered to the layout printing component; the antenna wire ends of the composite module are respectively fixed to the two ends of the control circuit, the key component is adhered to the antenna exposed frame by double-sided tape, and the key component is pressed to obtain an externally fitted key card, and the pressing pressure is between 5-10MPa.

6. The method for implementing the externally-attached key card according to claim 5, characterized in that: The on-off controller comprises: a metal conductor spring with a curved convex shape in the middle part having elastic deformation; the steps of placing the on-off controller include: A hot-pressed adhesive sheet bonded with double-sided adhesive at high temperature is placed between the button and the control circuit, and a hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to a disconnection point where the functional part of the button and the control circuit are disconnected; The on-off controller is placed in the hollow frame so that the curved and convex parts of the on-off controller correspond to the disconnection points where the functional parts of the button and the control circuit are disconnected.

7. The method for implementing the externally-attached key card according to claim 5, characterized in that: The on-off controller includes: an electrostatic trigger, the electrostatic trigger is a resistor and / or a capacitor, and the steps of placing the on-off controller include: A hot-pressed adhesive sheet bonded with double-sided adhesive at high temperature is placed between the button and the control circuit, and a hollow frame is provided on the hot-pressed adhesive sheet at a position corresponding to a disconnection point where the functional part of the button and the control circuit are disconnected; Connecting two ends of the electrostatic trigger of a resistor and / or capacitor to two disconnection points of the control circuit respectively, and placing them in the hollow frame; The button is an electrostatic conductor, connected to the electrostatic trigger, and triggers the electrostatic trigger to turn on when receiving an electrostatic trigger; and restores the electrostatic trigger to a disconnected state when the electrostatic trigger is released.

8. The method for implementing the externally bonded key card according to claim 5, characterized in that: The key comprises: a key function part and a protective film, wherein the key function part corresponds to the on-off controller, and the protective film surrounds the key function part; the key function part is provided with a key cavity on a side facing the card, and the step of attaching the key to the substrate composite module comprises: The on-off controller is placed in the cavity of the key; the periphery of the protective film is bonded to the substrate of the control circuit by means of a hot pressing adhesive to obtain a key assembly; The button assembly is embedded in the antenna exposed frame, so that the periphery of the protective film is embedded in the antenna exposed frame, or adhered to the layout printing assembly.

Images